
Global Provider of Precision Cleaning Services
CLEAN SCIENCES, INC. in Fremont, CA, is a leader in the ultra-high-tech cleaning service for the past 30 years. We specialize in precision cleaning for semiconductor equipment manufacturers, solar, aerospace, automotive, medical, bio medical, optics and electronic industries. We focus on service excellence and fast turnaround times to ensure that our customers meet their deadlines. Additionally, we can provide our clients with customized cleaning specifications to meet even their most rigorous certification needs.
CLEAN SCIENCES, INC. is an industry-trusted source for precision cleaning. Our standard lead time is 72 hours or less and, in many cases, customer get their orders back in 24 hours. Friendly service, competitive prices, and quick turnaround time are why CLEAN SCIENCES, INC. should be your first choice for precision cleaning, chemical cleaning, passivation, ultrasonic cleaning and cleanroom packaging.
CLEAN SCIENCES, INC. has been listed in the Bay Area’s Top 100 Fastest-Growing, Privately Held Companies 14 times. Our president and CEO, Jonathan Kaye, was recognized as Entrepreneur of the Year for Service Company in June of 2000 by the San Jose Business Journal.

Our Commitment to Sustainable Business Practices:
- Paperless “Online” Traveler System
- Online Procedures and Specification with Employee Instruction
- Waste Minimization through Effective Rinsing Techniques
- Paper and Plastic Waste Recycling
- Reduction of Chemical Inventory and JIT Chemical Ordering
- Environmentally Friendly Cleaning Detergents
- Hazardous Waste Recycling
Paperless “Online” Traveler System

Online Procedures and Specification with Employee Instruction
Waste Minimization through Effective Rinsing Techniques
Paper and Plastic Waste Recycling
Reduction of Chemical Inventory and JIT Chemical Ordering
Environmentally Friendly Cleaning Detergents
Hazardous Waste Recycling
Precision Cleaning
CLEAN SCIENCES, INC.’s cleaning processes are performed utilizing various methods, depending on the material, type and amount of contamination, and required level of cleanliness needed for the particular service. Parts required to meet the most stringent cleanliness criteria are cleaned and packaged in our newly expanded and renovated facility.
CLEAN SCIENCES, INC.’s precision cleaning services utilize methods such as ultrasonic, high-purity solvents and detergents, chemical etching, and hot RO/DI waster rinsing with class 100 packaging in a class 100-1000 cleanroom. Our staff can also work with you to tailor procedures that meet your specific cleanliness requirements.
Precision cleaning is just part of the process. To assure compliance, cleanliness testing for solid particles, nonvolatile residue, and chemical and metal contamination can be performed by one of our outside labs.
Ultrasonic Cleaning
Ultrasonic cleaning is achieved by using transducers in or attached to the bottom of a tank to emit and radiate sound waves through the cleaning solution. These sound waves cause millions of microscopic bubbles to form and grow, this process is called “cavitation.” These ultrasonic cleaning bubbles then collapse or “implode” on the part releasing enormous amounts of energy. These implosions work in all directions to Ultrasonically Clean and remove contamination from the work piece.
CLEAN SCIENCES, INC. offers square wave and sweeping ultrasonic cleaning utilizing high-purity solvents and detergents. All process solutions are monitored and controlled to ensure consistency and repeatability.




Chemical Cleaning
Chemical cleaning of materials is a vital part of many high-tech operations and they require a strong scientific basis behind the development of a cleaning process. Therefore, it is highly advantageous for the cleaning industry to stand on an equivalent scientific platform and to have access to very critical and relevant information. Through this knowledge base, the intelligent decisions on the etch time and chemistry can be made.
The purpose of any cleaning process is to remove contaminants from a part that needs to be rendered clean. Contaminant removal, through chemical means, involves a chemical reaction that modifies the chemical composition of contaminants. Contaminants depositions could be in multi-layers which may be impossible to obtain a chemical solution to remove all contaminants in one step process.
Moreover, it is very important to understand the dynamics and factors that influence chemical cleaning. Cleaning contaminated parts involves two key steps: mass transfer and reaction kinetics, which consist of many dimensionless numbers. An increase in the value of dimensionless numbers such as Reynolds number, bulk Peclet number, Sherwood number, and Schmidt number leads to increase in contaminant removal rates and hence the cleaning process.
Passivation
CLEAN SCIENCES, INC. offers stainless steel passivation, nitric passivation, and citric acid passivation:
ASTM A 967:
Chemical passivation treatments for stainless steel parts.
ASTM A 380:
Standard practice for cleaning, descaling, and passivation of stainless-steel parts, equipment, and systems.
Federal Specification QQ-P-35C:
Passivation treatments for corrosion resistance steels.
Specialty Part Treatment Services
Mechanical Cleaning, Texturing, and Protective Coatings
Our sister company, Clean Sciences Technology, LLC, mechanically cleans and refurbishes fabricated metal and non-metal parts. They are highly skilled in surface enhanced bead blast texturing as well as restorative metal twin arc spray coatings.

Refurbishing Services:
Texturing: Aluminum oxide and glass bead blasting.
Protective Coatings: Twin-wire are spray.
Passivation: ASTM A 967, ASTM A 380, and QQ-P-35C.

Cleaning Services:
Precision: Standard and custom processes.
Chemical: Alkaline and base solvents, thermal/non-thermal detergents, and acid etch.
Mechanical: Aluminum oxide bead blasting and CO2 blasting.
Ultrasonic: Non-abrasive cavitation.

Customer Services:
1-7 Day Service Option
Order Pick–Up and Delivery